Method of finishing metal articles.



No. 746,?24. PATENTED DEG-15, 1-903...

0. R. MANNING.

METHOD OF FINISHING METAL ARTICLES. APPLIOATION I'ILBD JAN: 5, 1903.

N0 MODEL.

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Patented December 15, 1903.

CHARLOTTE R. MANNING, OF MERIDEN, CONNECTICUT.

METHOD OF FINISHING METAL ARTICLES.

SPECIFICATION forming part of Letters Patent No. 746,724, dated.December 15, 1903.

I Application filed January 5, 1903.

. To all whom 2325 may concern:

Be it known that LOHARLOTTE R.MANNING, of Meriden, in the county ofNew'Haven and State of Connecticut, have invented a new and usefulImprovement in Methods of Finishing Metal Articles; and I do herebydeclare the following,when taken in connection with the accompanyingdrawings and the letters of reference marked thereon, to be a full,clear, and exact description of the same, and which said drawingsconstitute part of this specification, and represent, in

Figure 1, a side view of a vessel having a primarily-coated exteriorsurface; Fig. 2, a broken sectional view of the same, showing theinterior lining and final exterior finish.

This invention relates to a method of finishing the surfaces of metalarticles for various purposes, and is particularly intended forfinishing the surfacesof porcelain or enamel lined vessels. For manyarticles of tableware it is desirable to have a porcelain lining with asilver-plated exterior; but firing the articles after coating theinterior causes scales to form on the exterior surface, so that greatdifficulty is experienced in producing a sulficiently smooth surface toplate, for no matter how fine a polish may be given an article heforefiring it will scale to a greater or less exof nickel, copper, or othermaterial, by elec- Y troplating. The interior of the Vessel is thenSerial No. 137,794. (No model.)

given an enamel'lining C of so-called granite or porcelain ware, andthen fired to set the lining. After firing, the exterior surface isremoved with a grinding or polishing wheel or by acids and polishedforthe final .finish D, of nickel, silver, or other material,

Iclaim as new, and desire to secure by Letters Patent, is- I l. Theherein-described method of finishing surfaces of metal requiring firingconsisting in primarily plating the metal, then firing and then removingthe primary plating for subsequent finishing, whereby the formation ofscales by firing is avoided, substantially as described.

2. The herein-described method of finishing metal articles whichrequired firing, consisting in primarily plating the exterior surfaceand lining the interior surface, then firing to set the lining, thenremoving the primary plating and polishing preparatory to replating andfinishing the surface, substantially as described. T

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

CHARLOTTE R. MANNING.

Witnesses:

FREDERIC C. EARLE, CLARA L. WEED.

